america is a funny place, from an on looers point of view, they have taken their "right to bare arms" far too literal.. it was originally made for local militias in times of war and what have you, then twisted into a more self defense stance and justification to have a "arsenal" of weapons.. silly if you ask me.
if america insists on arming their citizens with little control (let's face it, gun control is disgraceful in the states) then make high rate of fire weapons and automatic weaponry illegal (sub machine guns, assault rifles etc) because if you want to defend your home, that is fair play.. but you only need a pistol or shotgun at best, just over kill to have an Uzi or M4 rifle or what ever they are. .
Just look at us n the UK, we have very strict laws and we have one of the lowest rates of gun crime in the world. Don't get me wrong, we still have the odd shooting but only once a decade or so and not 3 to 6 massacres a YEAR america seems to have due to poor gun control and poor mindsets to weapons.